APA (7th ed.) Citation

Maia, L., Casal, S., Oliveira, M. B., & Oliveira, P. (2008). Validation of a micromethod for quantification of lutein and beta-carotene in olive oil.

Chicago Style (17th ed.) Citation

Maia, Lúcia, Susana Casal, M. Beatriz Oliveira, and Paula Oliveira. Validation of a Micromethod for Quantification of Lutein and Beta-carotene in Olive Oil. 2008.

MLA (8th ed.) Citation

Maia, Lúcia, et al. Validation of a Micromethod for Quantification of Lutein and Beta-carotene in Olive Oil. 2008.

Warning: These citations may not always be 100% accurate.